Optical: systems and elements – Single channel simultaneously to or from plural channels – By partial reflection at beam splitting or combining surface
Patent
1998-02-24
1999-08-03
Epps, Georgia
Optical: systems and elements
Single channel simultaneously to or from plural channels
By partial reflection at beam splitting or combining surface
359631, 359633, 359635, 345 7, 345 8, 348115, G02B 628
Patent
active
059332794
ABSTRACT:
An optical apparatus includes a display for displaying image information, a display optical system having a plurality of reflection surfaces for guiding a light beam from the display to an eyeball of an observer, an image sensor, an image pickup optical system having a plurality of reflection surfaces for focusing a light beam from an external field to form an image on the image sensor, and an optical path separating surface for separating an optical path in the display optical system and an optical path in the image pickup optical system from each other in opposite directions. Thus, image information provided on the display can be viewed by the observer, and a scene in the external field can be taken in the image sensor.
REFERENCES:
patent: 5079416 (1992-01-01), Filipovich
patent: 5689736 (1997-11-01), Okuyama et al.
Canon Kabushiki Kaisha
Epps Georgia
Spector David N.
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